WO2016107315A1

WO2016107315A1 - Sending and receiving method and device for scheduling indication information

Info

Publication number: WO2016107315A1
Application number: PCT/CN2015/094829
Authority: WO
Inventors: 姚珂; 邢卫民; 芮华; 吕开颖; 孙波; 田开波
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-12-31
Filing date: 2015-11-17
Publication date: 2016-07-07
Also published as: CN105813206B; CN105813206A

Abstract

Provided are a sending and receiving method and device for scheduling indication information. The sending method comprises: sending scheduling indication information in a partial repetition manner to a station that participates in this scheduling, wherein the scheduling indication information comprises navigation information, downlink resource indication information and/or uplink resource indication information; the partial repetition manner is used for indicating that only the navigation information is repeatedly sent on a frequency resource occupied by predetermined scheduling indication information and indication information about some stations in the downlink resource indication information or the uplink resource indication information is repeatedly sent on the frequency resource, or the downlink resource indication information or the uplink resource indication information is sent in a non-repetition manner in the frequency resource; and the navigation information is used for indicating the location of scheduling indication information corresponding to the station in a frame where the scheduling indication information is located. The technical solution provided in the present invention solves the problems of long time duration and resource waste caused by a full repetition sending manner and has the advantage of a high resource utilization rate.

Description

Method and device for transmitting and receiving scheduling indication information

Technical field

The present invention relates to the field of communications, and in particular to a method and an apparatus for transmitting and receiving scheduling indication information.

Background technique

At present, as more people use the Wireless Local Access Network (WLAN) for data communication, the WLAN network load is also increasing. The IEEE 802.11 group of the Institute of Electrical and Electronics Engineers has defined IEEE 802.11. A series of standards such as a/b/g/n/ac meet the growing communication needs. These standards are mostly aimed at improving 802.11 technology to increase the maximum physical layer transmission rate or network maximum throughput. However, as the number of users increases, the efficiency of WLAN networks will decline significantly. Simply increasing the rate does not solve the problem. Therefore, the working group established a related high efficiency WLAN (HEW) group dedicated to To solve the problem of WLAN network efficiency.

In the traditional WLAN system, the scheduling information is indicated in the information field (SIG field) of the physical frame header, as shown in FIG. 1 is a non-high (non-high throughput) of IEEE 802.11a. The IEEE 802.11n HT-mixed physical frame format, the legacy information SIG (L-SIG) carries non-HT resource scheduling information, and the main content is the transmission rate and the transmission length. The HT-mixed format expands the scheduling information. In addition to the L-SIG domain, the scheduling information is stored in the HT-SIG. In addition to the transmission rate and the transmission length, multiple input multiple output (Multiple Input Multiple Output) is added. The indication information related to MIMO, such as whether it is a sounding frame (probe frame), the number of layers, etc., also adds an indication of new features of 802.11n, such as aggregation characteristics, space time block code (STBC) )Wait. Figure 2 shows the physical frame structure of IEEE 802.11ac. Since the multi-user Multiple Input Multiple Output (MU-MIMO) technology is supported, the scheduling information is further expanded. Therefore, the frame format of 802.11ac is shown. The Very High Throughput SIG (VHT-SIG) is divided into two parts, VHT-SIG-A and VHT-SIG-B, which carry different information. 802.11ac is the same resource indication overhead for single-user and multi-user, and has different meanings for single-user and multi-user in some bit positions.

The traditional SIG domain (L-SIG), HT-SIG, and VHT-SIG-A are repeatedly transmitted in units of 20 MHz. VHT-SIG-B is not directly transmitted in units of 20 MHz, but according to The supported bandwidth is different. When transmitting, the bit content of the content that can be carried by 20 MHz is first repeated, and then the subsequent code modulation mapping processing is performed.

The traditional WLAN only supports full bandwidth scheduling users, but the actual application has a high proportion of small data packets, and the large bandwidth is very expensive to transmit small data packets; in addition, the frequency selective fading of large bandwidth is much higher than the small bandwidth probability, so the next A generation of WLAN technology will introduce Orthogonal Frequency Division Multiple Access (OFDMA) to implement small bandwidth transmission of small data packets and selection of partial bandwidth according to frequency selection results.

The OFDMA technology allocates frequency resources of the same period to multiple users, and needs to use scheduling information to indicate each user's Resources. Taking 5MHz resource allocation granularity as an example, up to 32 users will be supported at 160MHz. If all the user's scheduling information (also called scheduling indication information) is sent on the primary channel in the conventional manner and repeated on other secondary channels, the time will continue for a long time, which will cause a great waste of resources.

For the related art, the problem of long duration and waste of resources caused by completely repeating all user scheduling information on the primary subchannel is not yet proposed.

Summary of the invention

In order to solve the above technical problem, an embodiment of the present invention provides a method and an apparatus for transmitting and receiving scheduling indication information.

According to an embodiment of the present invention, a method for sending scheduling indication information is provided, including: sending scheduling indication information to a station participating in the current scheduling in a partially repeated manner, where the scheduling indication information includes: navigation information, downlink The resource indication information and/or the uplink resource indication information, where the partial repetition manner is used to indicate that only the navigation information is repeatedly sent on a frequency resource occupied by the predetermined scheduling indication information, and is repeatedly sent on the frequency resource. The downlink resource indication information or the indication information of the part of the uplink resource indication information, or the downlink resource indication information or the uplink resource indication information is sent in the non-repetitive manner in the frequency resource, where the navigation information is used to indicate the site Corresponding scheduling indication information is located in a frame where the scheduling indication information is located.

In the embodiment of the present invention, the navigation information sent to the station is repeatedly sent in the frequency resource, including: transmitting the navigation information on a primary 20 MHz channel; and non-high throughput on other 20 MHz subchannels. The HT repeats the manner of transmitting the navigation information, wherein the other 20 MHz subchannel is a subchannel other than the main 20 MHz channel on the frequency resource occupied by the predetermined scheduling indication information.

In the embodiment of the present invention, the other 20 MHz subchannels are subchannels with continuous bandwidth or discontinuous bandwidth.

In the embodiment of the present invention, after the scheduling indication information is sent to the station participating in the current scheduling in a partial repetition manner, the method further includes: in the resource location indicated by the downlink resource indication information, a manner indicated by the following resource indication information The station sends the downlink data; and/or receives the uplink data sent by the station in the manner indicated in the foregoing resource indication information on the resource location indicated by the uplink resource indication information.

In the embodiment of the present invention, the downlink resource indication information and the uplink resource indication information of the station occupy the same frequency band as the data sent by the station or the received data.

In the embodiment of the present invention, the downlink resource indication information and/or the uplink resource indication are sent by the MU-MIMO mode when the MU-MIMO shared frequency band resource is allocated in the multi-user multiple input multiple output mode. information.

In the embodiment of the present invention, when different sites are scheduled to the same bandwidth, and the same bandwidth fails to accommodate the downlink resource indication information and/or the uplink resource indication information of all the stations, the downlink channel is specified in the downlink channel other than the same bandwidth. The user selects the unoccupied frequency resource to send the downlink resource indication information and/or the uplink resource indication information.

In the embodiment of the present invention, the method further includes: failing to obtain the allocation to the site according to the scheduling indication information The time length corresponding to the downlink resource indication information and/or the uplink resource indication information is extended; and the frequency position of the downlink resource indication information and/or the uplink resource indication information of the station is determined according to the extended duration.

In the embodiment of the present invention, when there is an idle-time time-frequency resource in the time-frequency resource that sends the scheduling indication information, the time-frequency resource in the idle state is filled in at least one of the following: the downlink resource indication information and And when the uplink resource indicates that the information resource is extended, the downlink resource indication information and/or the uplink resource indication information before the time-frequency resource in the idle state is filled with the time-frequency resource of the idle state; The indication information and/or the uplink resource indication information is populated into the time-frequency resource of the idle state.

In the embodiment of the present invention, the method further includes: the downlink resource indication information and/or the uplink resource indication information are encapsulated in a medium access control MAC frame, or the downlink resource indication information and/or the uplink resource indication information The encapsulation is carried in the signal SIG field of the physical frame header.

According to another embodiment of the present invention, a method for receiving scheduling indication information is further provided, including: resolving scheduling indication information that is sent by the access point in a partially repeated manner, where the scheduling indication information includes: navigation information, The downlink resource indication information and/or the uplink resource indication information, where the partial repetition manner is used to indicate that only the navigation information is repeatedly sent on a frequency resource occupied by the predetermined scheduling indication information, and is repeated on the frequency resource. And sending the downlink resource indication information or the indication information of the part of the uplink resource indication information, or sending the downlink resource indication information or the uplink resource indication information in the non-repetitive manner in the frequency resource, where the navigation information is used to indicate the The location of the scheduling indication information corresponding to the station in the frame where the scheduling indication information is located, and the downlink resource indication information and/or the uplink resource indication information according to the frequency resource location indicated by the navigation information.

In the embodiment of the present invention, after receiving the downlink resource indication information and/or the uplink resource indication information according to the frequency resource location indicated by the navigation information, the method further includes: at a resource location indicated by the downlink resource indication information, Receiving the downlink data sent by the access point in the manner indicated in the following row resource indication information; and/or, in the resource location indicated by the uplink resource indication information, the manner indicated in the foregoing resource indication information is sent to the access Point to send upstream data.

According to another embodiment of the present invention, a sending apparatus for scheduling indication information is further applied to an access point, including: a first sending module, configured to send scheduling indication information in a partially repeated manner to a station participating in the current scheduling The scheduling indication information includes: navigation information, downlink resource indication information, and/or uplink resource indication information, where the partial repetition manner is used to indicate that only the navigation information is occupied by the predetermined scheduling indication information. Repeating the transmission on the resource, and repeatedly transmitting the downlink resource indication information or the indication information of the part of the uplink resource indication information on the frequency resource, or sending the downlink resource indication information or the uplink in the non-repetitive manner on the frequency resource. The resource indication information is used to indicate the location of the scheduling indication information corresponding to the station in the frame where the scheduling indication information is located.

In the embodiment of the present invention, the first sending module is configured to send the navigation information on a primary 20 MHz channel; and send the navigation information in a non-high throughput non-HT repetition manner on other 20 MHz subchannels, The other 20 MHz subchannel is a subchannel other than the main 20 MHz channel on the frequency resource occupied by the predetermined scheduling indication information.

In the embodiment of the present invention, the device further includes: a second sending module, configured to be in the downlink resource indication At the resource location indicated by the information, the downlink data is sent to the site in the manner indicated in the following resource indication information; and/or the receiving module is configured to set the resource indication information on the resource location indicated by the uplink resource indication information. The manner indicated in the middle receives the uplink data sent by the station.

In the embodiment of the present invention, the apparatus further includes: an extension module, configured to extend the downlink resource indication information and/or the uplink resource when the station fails to obtain the allocated frequency resource according to the scheduling indication information. And a determining module, configured to determine, according to the extended duration, a frequency location of the downlink resource indication information and/or the uplink resource indication information of the station.

In the embodiment of the present invention, the device further includes: a filling module, configured to fill the time-frequency resource of the idle state when there is an idle-time time-frequency resource in the time-frequency resource that sends the scheduling indication information, where The filling module is configured to fill the idle resource indication information and/or the uplink resource indication information before the time-frequency resource in the idle state with the idle state when the downlink resource indication information and/or the uplink resource indication information resource is extended. The time-frequency resource; and the downlink resource indication information and/or the uplink resource indication information of the designated station are filled into the time-frequency resource of the idle state.

According to another embodiment of the present invention, a receiving apparatus for scheduling indication information is provided, which is applied to a station, and includes: a parsing module, configured to parse scheduling indication information that is sent by the access point in a partially repeated manner, where The scheduling indication information includes: navigation information, downlink resource indication information, and/or uplink resource indication information, where the partial repetition manner is used to indicate that only the navigation information is repeatedly sent on a frequency resource occupied by the predetermined scheduling indication information. And transmitting the downlink resource indication information or the indication information of the part of the uplink resource indication information on the frequency resource, or sending the downlink resource indication information or the uplink resource indication information in the non-repetitive manner in the frequency resource, where The navigation information is used to indicate the location of the scheduling indication information corresponding to the station in the frame where the scheduling indication information is located; the first receiving module is configured to receive the downlink resource indication according to the frequency resource location indicated by the navigation information. Information and/or uplink resource indication information.

In the embodiment of the present invention, the device further includes: a second receiving module, configured to receive, at a resource location indicated by the downlink resource indication information, a manner that is received by the access point in the manner indicated by the downlink resource indication information The downlink data; and/or the sending module is configured to send, to the resource location indicated by the uplink resource indication information, uplink data to the access point in a manner indicated by the uplink resource indication information.

According to the embodiment of the present invention, only the navigation information is sent in a completely repeated transmission manner on the frequency resource occupied by the predetermined scheduling indication information, and the downlink resource indication information or the uplink resource indication information is in the predetermined scheduling indication. The frequency resource occupied by the information is a technical solution in a non-repetitive manner or a partially repeated manner, which solves the problem that the duration of the user's scheduling information on the primary subchannel is completely repeated on the secondary subchannel, and the resource is wasted. The problem is that there is no user confusion when the number of users is large, and the advantage of high resource utilization is obtained.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram of an HT-mixed physical frame format of non-HT and 802.11n of 802.11a in the related art;

2 is a schematic diagram of a physical frame structure of an 802.11ac in the related art;

FIG. 3 is a flowchart of a method for transmitting scheduling indication information according to an embodiment of the present invention; FIG.

4 is a structural block diagram of an apparatus for transmitting scheduling indication information according to an embodiment of the present invention;

FIG. 5 is a block diagram showing still another structure of a device for transmitting scheduling indication information according to an embodiment of the present invention; FIG.

FIG. 6 is a flowchart of a method for receiving scheduling indication information according to an embodiment of the present invention; FIG.

FIG. 7 is a structural block diagram of a receiving apparatus for scheduling indication information according to an embodiment of the present invention; FIG.

FIG. 8 is a block diagram showing still another structure of a receiving apparatus for scheduling indication information according to an embodiment of the present invention; FIG.

9 is a schematic diagram of a scheduling frame format in which each station is independently encapsulated into one MAC frame according to a preferred embodiment of the present invention;

10 is a schematic diagram of a scheduling frame format of a non-contiguous bandwidth in which each station is independently encapsulated into one MAC frame according to a preferred embodiment 2 of the present invention;

11 is a schematic diagram of a priority manner of load resource allocation according to a preferred embodiment 3 of the present invention;

12 is a schematic diagram of physical frame header transmission resource indication information according to a preferred embodiment 4 of the present invention;

FIG. 13 is a schematic diagram of MAC frames of different lengths to be complemented according to a preferred embodiment 5 of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

Other features and advantages of the invention will be set forth in the description which follows, The objectives and other advantages of the invention may be realized and obtained by means of the structure particularly pointed in the appended claims.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is an embodiment of the invention, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

In this embodiment, a method for sending scheduling indication information is provided. FIG. 3 is a flowchart of a method for sending scheduling indication information according to an embodiment of the present invention. As shown in FIG. 3, the process includes the following steps:

Step S302, determining a site participating in the current scheduling;

Step S304, the scheduling indication information is sent to the station participating in the current scheduling in a partial repetition manner, where the scheduling indication information includes: navigation information, downlink resource indication information, and/or uplink resource indication information, and the partial repetition manner is used to indicate only The navigation information is repeatedly sent on the frequency resource occupied by the predetermined scheduling indication information, and the downlink resource indication information or the indication information of the part of the uplink resource indication information is repeatedly sent on the frequency resource, or in the frequency resource. The non-repetitive transmission mode is used to send the downlink resource indication information or the uplink resource indication information, where the navigation information is used to indicate the location of the scheduling indication information corresponding to the site in the frame where the scheduling indication information is located.

And the downlink resource indication information or the uplink resource indication information is occupied by the predetermined scheduling indication information by using only the navigation information on the frequency resource occupied by the predetermined scheduling indication information. The frequency resource is a technical solution in a non-repetitive manner or a partial repetition mode, which solves the problem of long duration and waste of resources caused by completely repeating the transmission of all user scheduling information on the primary subchannel on the secondary subchannel in the related art. When the number of users is large, user confusion does not occur, and the resource utilization rate is high.

It should be noted that the above non-repetitive manner can be understood as a transmission method that prohibits transmission in a repeated manner, and is a transmission method that does not adopt a repeated transmission manner.

In the above step S304, the navigation information sent to the station is repeatedly transmitted in the frequency resource, and may be implemented by: transmitting the navigation information on a primary 20 MHz channel; non-high throughput on other 20 MHz subchannels. Transmitting the navigation information in an HT repeating manner, wherein the other 20 MHz subchannel is a subchannel other than the main 20 MHz channel on the frequency resource occupied by the predetermined scheduling indication information, that is, because navigation information is used Instructing the location of the scheduling indication information corresponding to the foregoing station in the frame in which the scheduling indication information is located, in the primary subchannel (corresponding to the primary 20 MHz channel of the foregoing embodiment) and the secondary subchannel (corresponding to the 20 MHz subchannel of the above embodiment) If the navigation information needs to be sent, the above-mentioned navigation information is sent in a repeated manner on the frequency resource occupied by the access point, which refers to the frequency at which the access point sends navigation information on the primary channel (main 20 MHz) and is occupied by the access point. The navigation information of the primary channel is repeatedly transmitted on other subchannels of the resource.

In addition, the scheduling information in the related art does not support the transmission on the non-contiguous bandwidth, and the non-contiguous bandwidth occupied by the scheduling information should include the bandwidth allocated by the subsequent frame. To solve the above technical problem, the other 20 MHz provided by the embodiment of the present invention The subchannel is a subchannel with continuous bandwidth or discontinuous bandwidth, that is, any 20MHz subchannel other than the main 20MHz channel is allowed to not participate in the transmission.

Optionally, in an optional example of the embodiment of the present invention, after performing step S304, the following technical solution is further performed: in the resource location indicated by the downlink resource indication information, the manner indicated in the following resource indication information Sending the downlink data to the foregoing station; and/or receiving the uplink data sent by the station in the manner indicated in the foregoing resource indication information on the resource location indicated by the foregoing uplink resource indication information. In a preferred example of the embodiment of the present invention, the downlink is performed. The resource indication information and the uplink resource indication information occupy the same frequency band as the above-mentioned station sending data or receiving data. Of course, there may be 20M scheduling multiple STAs (sites) in MU-MIMO or smaller bandwidth multiplexing manner, then The scheduling information occupies MU-MIMO or occupies other idle resources. For example, some users allocate a large bandwidth of 40M or 80M, the scheduling information only uses 20M, and the rest is idle.

It should be noted that the embodiment of the present invention further provides a technical solution: when the different stations are scheduled to the same bandwidth, and the MU-MIMO shares the frequency band resources, the downlink resource indication information and/or the uplink is sent by using the MU-MIMO mode. Resource indication information.

When the different stations are scheduled to the same bandwidth, and the same bandwidth fails to accommodate the downlink resource indication information and/or the uplink resource indication information of all the stations, the unoccupied frequency is selected for the designated user in the downlink channel other than the same bandwidth. The resource sends the downlink resource indication information and/or the uplink resource indication information. That is, if the subsequent data is scheduled to the same 20MHz subchannel, and the downlink/uplink resource indication information of different sites of the OFDMA shared resource is performed at a smaller granularity, the access point is based on the downlink channel idle condition of the scheduled station. The multiplexed user selects other unoccupied resource transmissions on the frequency resources occupied by the access point.

The embodiment of the present invention further provides the following technical solution: when the foregoing station fails to obtain the allocated frequency resource according to the scheduling indication information, the length of time corresponding to the downlink resource indication information and/or the uplink resource indication information is extended; The duration determines a frequency location at which the downlink resource indication information and/or the uplink resource indication information of the foregoing station are allocated.

Further, when there is an idle state time-frequency resource in the time-frequency resource that sends the scheduling indication information, the time-frequency resource in the idle state is filled in at least one of the following: the downlink resource indication information and/or the uplink resource indication information. When the resource existence duration is extended, the downlink resource indication information and/or the uplink resource indication information before the time-frequency resource in the idle state is filled with the time-frequency resource of the idle state; and the downlink resource indication information and/or the uplink resource indication of the designated station is used. The information is filled into the time-frequency resources of the above idle state.

It should be noted that the foregoing downlink resource indication information and/or the uplink resource indication information are encapsulated in a medium access control MAC frame, or the downlink resource indication information and/or the uplink resource indication information is encapsulated as an information block carried in a physical frame header. Signal in the SIG field.

In this embodiment, a device for transmitting scheduling indication information is provided, which is applied to an access point, and is used to implement the foregoing embodiments and preferred embodiments. The module to be explained. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated. FIG. 4 is a structural block diagram of an apparatus for transmitting scheduling indication information according to an embodiment of the present invention. As shown in Figure 4, the device comprises:

The first determining module 40 is configured to determine a site participating in the current scheduling;

The first sending module 42 is connected to the determining module 40, and is configured to send the scheduling indication information to the station participating in the current scheduling in a partial repetition manner, where the scheduling indication information includes: navigation information, downlink resource indication information, and/or uplink resources. In the indication information, the partial repetition mode is used to indicate that only the navigation information is repeatedly transmitted on the frequency resource occupied by the predetermined scheduling indication information, and the downlink resource indication information or the uplink resource indication information is repeatedly sent on the frequency resource. The indication information, or the downlink resource indication information or the uplink resource indication information is sent in a non-repetitive manner on the frequency resource, where the navigation information is used to indicate the location of the scheduling indication information corresponding to the station in the frame where the scheduling indication information is located. .

Through the integrated application of the foregoing modules, only the navigation information is sent in a completely repeated transmission manner on the frequency resource occupied by the predetermined scheduling indication information, and the downlink resource indication information or the uplink resource indication information is in the predetermined scheduling indication. The frequency resource occupied by the information is in a non-repetitive manner or a partially repeated manner, and solves the continuation caused by completely repeating the transmission of all user scheduling information on the primary subchannel on the secondary subchannel in the related art. The problem of long distance and waste of resources is that there is no user confusion when the number of users is large, and the resource utilization rate is high.

Wherein, the first sending module 42 is configured to transmit the navigation information on a primary 20 MHz channel; and transmit the navigation information in a non-high throughput non-HT repetition manner on other 20 MHz subchannels, wherein the other 20 MHz sub- The channel is a subchannel other than the main 20 MHz channel on the frequency resource occupied by the predetermined scheduling indication information.

As shown in FIG. 5, the apparatus further includes: a second sending module 44, configured to send downlink data to the site in a manner indicated in the following resource indication information at a resource location indicated by the downlink resource indication information; and/or The receiving module 46 is configured to receive the uplink data sent by the station in the manner indicated in the uplink resource indication information at the resource location indicated by the uplink resource indication information.

Optionally, when the foregoing site fails to obtain the allocated frequency resource according to the scheduling indication information, the foregoing apparatus further includes: an extension module 48, configured to: when the site fails to obtain the allocated frequency resource according to the scheduling indication information, And the length of time corresponding to the downlink resource indication information and/or the uplink resource indication information is extended; the second determining module 50 is configured to determine, according to the extended duration, a frequency of allocation of the downlink resource indication information and/or the uplink resource indication information of the site. position.

In the embodiment of the present invention, the device further includes: a filling module 52, configured to fill the time-frequency resource of the idle state when the time-frequency resource of the idle state exists in the time-frequency resource that sends the scheduling indication information, and the filling module And the downlink resource indication information and/or the uplink resource indication information before the time-frequency resource in the idle state is filled with the time-frequency resource in the idle state, when the duration of the downlink resource indication information and/or the uplink resource indication information resource is extended; And filling the downlink resource indication information and/or the uplink resource indication information of the designated site into the time-frequency resource of the idle state.

It should be noted that, in the foregoing transmission scheme of the scheduling indication information, before the resource indication information is sent, the access point needs to obtain a channel access opportunity, and determines the user to be scheduled and each user according to the scheduling algorithm in the prior art. The resource allocation scheme, the present invention, by using the following example, the access point is the execution entity in the foregoing scheduling indication information scheme, and the transmission scheme of the foregoing scheduling indication information is briefly described:

The access point occupies a frequency resource that is not less than the frequency allocated by all the stations in the current scheduling, and sends the scheduling indication information in a partially repeated manner, where the scheduling indication information includes navigation information, downlink resource indication information, and/or uplink resource indication information, where the foregoing part is The sending of the scheduling indication information in a repeated manner means that the navigation information is sent in a repeated manner on the frequency resource occupied by the access point, and the downlink/uplink resource indication information is non-repetitive or partially repeated on the frequency resource occupied by the access point. The way to send.

The access point sends the downlink data of the scheduled station in the manner indicated in the following resource indication information on the resource location indicated by the downlink resource indication information; the access point is at the resource location indicated by the uplink resource indication information, The uplink data transmitted by each station of the current scheduling is received in the manner indicated by the line resource indication information, where the navigation information is used to indicate the location of the resource indication information of each station in the current frame.

Further, the access point preferably places the downlink/uplink resource indication information of the site on the same frequency band as the subsequent data occupation frequency band, and arranges the downlink/uplink resource indication information of a certain site if the bandwidth equal to the data occupied frequency band is already Occupied, preferably other resources that have not been occupied according to the downlink channel idle condition of the scheduled station, the subsequent number The downlink/uplink resource indication information of different sites that are allocated to the same bandwidth in the MU-MIMO mode shared resource may be transmitted in the MU-MIMO manner.

If the foregoing method fails to find the location of the resource indication information transmission for a station, the duration of the downlink/uplink resource indication information is extended, and then the transmission is performed on the frequency resource occupied by the access point in the new time in the foregoing manner. position.

Further, if the downlink/uplink resource indication information of all scheduled stations has been scheduled, and the time-frequency resources for transmitting the resource indication information remain, the access point selects any of the following methods to fill the remaining resources:

(1) If there is a downlink/uplink resource indicating the extension of the duration of the information resource, the resource indication information at the time before the same frequency band of the idle resource is repeated to occupy the idle resource;

(2) The access point selects the downlink/uplink resource indication information of some important sites to be repeatedly filled to the remaining resources to occupy the idle resources.

It should be noted that if the downlink/uplink resource indication information is encapsulated in the MAC frame as the payload of the physical layer frame carrying the scheduling indication information frame, one MAC frame may include downlink/uplink resource indication information to multiple sites, and further If the time domain of the MAC frame of different bandwidths is not the same, the non-longest MAC frame needs to be padded to the time domain length of the longest MAC frame. The scheduling indication information sent by the access point can be used. Indicates that the subsequent data is an uplink scheduling, and may also be a scheduling indicating that the subsequent data is downlink, or a part of users may be downlink users.

In the embodiment of the present invention, a method for receiving scheduling indication information is also provided, and FIG. 6 is a flowchart of a method for receiving scheduling indication information according to an embodiment of the present invention. As shown in 6, it includes the following steps:

Step S602, parsing the scheduling indication information that is sent by the access point in a partially repeated manner, where the scheduling indication information includes: navigation information, downlink resource indication information, and/or uplink resource indication information, where the partial repetition manner is used to indicate that only the navigation information is Repeatedly transmitting the frequency resource occupied by the foregoing scheduling indication information, and repeatedly transmitting the downlink resource indication information or the indication information of the part of the uplink resource indication information on the frequency resource, or transmitting the information in the frequency resource in a non-repetitive manner. The method is configured to send the downlink resource indication information or the uplink resource indication information, where the navigation information is used to indicate the location of the scheduling indication information corresponding to the foregoing site in the frame where the scheduling indication information is located;

Step S604, receiving the downlink resource indication information and/or the uplink resource indication information according to the frequency resource location indicated by the navigation information.

The scheduling indication information sent by the access point according to the following manner is: the navigation information is sent in a completely repeated transmission manner on the frequency resource occupied by the predetermined scheduling indication information, and the downlink resource indication information or the uplink is sent. The resource indication information is in a non-repetitive manner or a partial repetition manner on the frequency resource occupied by the foregoing scheduling indication information, and the technical solution is adopted to solve all the problems in the related art that the secondary subchannel is completely repeatedly transmitted on the secondary subchannel. The problem caused by the user scheduling information is long, and the resource is wasted. When the number of users is large, user confusion does not occur, and the resource utilization rate is high.

A further improvement of the foregoing technical solution in the embodiment of the present invention is that, after performing step S604, The following technical solution: receiving the downlink data sent by the access point in the manner indicated in the following resource indication information on the resource location indicated by the downlink resource indication information; and/or on the resource location indicated by the uplink resource indication information, The uplink data is sent to the access point in the manner indicated in the foregoing resource indication information.

In this embodiment, a receiving device for scheduling indication information is also provided, which is applied to a site, and is used to implement the foregoing embodiments and preferred embodiments. The module is explained. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated. FIG. 7 is a structural block diagram of a receiving apparatus for scheduling indication information according to an embodiment of the present invention. As shown in Figure 7, the device includes:

The parsing module 70 is configured to parse the scheduling indication information that is sent by the access point in a partially repeated manner, where the scheduling indication information includes: navigation information, downlink resource indication information, and/or uplink resource indication information, where the partial repetition manner is used to indicate The navigation information is repeatedly transmitted on the frequency resource occupied by the foregoing scheduling indication information, and the downlink resource indication information or the indication information of the part of the uplink resource indication information is repeatedly transmitted on the frequency resource, or in the frequency resource. The downlink resource indication information or the uplink resource indication information is sent in a non-repeating manner, where the navigation information is used to indicate the location of the scheduling indication information corresponding to the station in the frame where the scheduling indication information is located;

The first receiving module 72 is connected to the parsing module 70 and configured to receive the downlink resource indication information and/or the uplink resource indication information according to the frequency resource location indicated by the navigation information.

Through the comprehensive use of the foregoing modules, the receiving indication information that is sent by the access point according to the following manner: only the navigation information is sent in a completely repeated transmission manner on the frequency resource occupied by the predetermined scheduling indication information, and the downlink resource indication The information or the uplink resource indication information is in a non-repetitive manner or a partial repetition manner on the frequency resource occupied by the foregoing scheduling indication information, and the technical solution is adopted to solve the related art, in which the primary subchannel is completely repeatedly transmitted on the secondary subchannel. The duration of all user scheduling information is long, and the problem of wasted resources is that there is no user confusion when the number of users is large, and the resource utilization is high.

Optionally, as shown in FIG. 8, the foregoing apparatus further includes: a second receiving module 74, configured to receive, by using, the foregoing access point, in a manner indicated in the following resource indication information, at a resource location indicated by the downlink resource indication information The downlink data; and/or the sending module 76 is configured to send the uplink data to the access point in a manner indicated by the uplink resource indication information at the resource location indicated by the uplink resource indication information.

In order to better understand the technical solutions provided by the foregoing embodiments of the present invention, the following concepts are introduced as follows:

1. The frequency band supported by an access point (AP) refers to the inherent attributes of the device;

2. The frequency band in which the AP works can be changed during boot configuration or work;

3. The real-time monitoring of the AP obtains the available frequency band, and obtains the available frequency band of the AP according to the common communication adapter (CCA) detection and the rule of the wireless local area network EDCA;

4. The frequency band in which the AP schedules user data is determined according to a scheduling algorithm;

5. The frequency band in which the AP transmits out-of-band scheduling information.

In the conventional WLAN technology, the above frequency bands are continuous bands of 20 MHz, 40 MHz, 80 MHz, and 160 MHz, or discrete bands of 80 MHz + 80 MHz but continuous bands in two segments. Further, the inclusion relationship of the above bands is: band 1 >=band 2>=band 3>=band 4=band 5.

In the embodiment of the present invention, the

above bands

1 and 2 are the same as the conventional WLAN technology, and the

bands

3, 4, and 5 may be any non-contiguous band composed of 20 MHz; and the inclusion relationship of the above bands is: band 1>=band 2> = Band 3 > = Band 5 > = Band 4.

The foregoing technical solution provided by the embodiment of the present invention has the advantages of high resource utilization rate and no user confusion, and has the effect that the indication overhead is small, and the actual application can be flexibly selected according to the scene characteristics.

In order to better understand the above technical solutions, the following description is combined with the preferred embodiments, but is not intended to limit the embodiments of the present invention:

In the following preferred embodiment, the access point operates on the 160 MHz band, and the resource occupation opportunities obtained in each of the preferred embodiments are different. It should be noted that the L-STF in FIG. 9 to FIG. 13 is a conventional short training. Short for Legacy-Short Training Format, L-LTF (Legacy-Long Training Format), HE-STF (HEW-Short Training Format), HE-LTF ( HEW-Long Training Format, a long training format for efficient WLAN).

Preferred embodiment 1

The access point obtains a 160MHz continuous bandwidth access opportunity, as shown in Figure 9. N=8 stations to be scheduled, the resource indication information of each station to be scheduled is separately encapsulated into one MAC control frame/management frame, and the resource indication information of multiple users is sent as the load of the physical layer frame. The navigation information of the physical frame header gives a location indication of the resource indication information. The navigation information transmits the location of the resource indication information of all stations on the primary channel 20 MHz, and the navigation information transmits the navigation information of the primary channel in a repeated manner on the remaining available bandwidth in the time domain.

For example, the navigation information in FIG. 9 can indicate at least the following: the location identifier of the current scheduling and its resource indication information are indicated in the location of the current frame, such as the station 1 occupying the subchannel 1, the station 2 occupying the subchannel 2, ..., Site N=8 occupies subchannel 8.

The navigation information in FIG. 9 may also include a combination of the following: the symbol length of the navigation information (for example, 4 OFDM symbols), the number of stations scheduled this time (for example, N), and the list of site identifiers of the current scheduling ( For example, the identification list of stations 1 to N), the identifier associated with the access point (for example, a part of the ID (Identification) of the access point or the calculated or assigned value), the uplink or downlink scheduling, or the scheduling of the hybrid uplink and downlink ( For example, only downlink scheduling), the number of symbols of a long training sequence in a frame (for example, one).

The resource indication information is encapsulated in the payload of the PHY protocol data unit (PPDU) as the content of the MAC control frame/management frame. The information of all scheduled users is sequentially discharged in the resource indication information. As shown in Table 1, a schematic diagram of encapsulation as a MAC layer control frame is given. There are a total of N sites, all of which are common to all sites. The resource indication information and the independent resource indication information of each site are placed in blocks.

Table 1 shows the format of the MAC layer control frame of the multi-user resource indication information.

In addition, the resource indication information may also be encapsulated into a management frame format of the MAC layer, as shown in Table 2.

Table 2 shows the format of the MAC layer management frame of the multi-user resource indication information.

If the resource indication information of the sites 1 to N is the downlink resource indication information, the corresponding sites 1 to N receive the corresponding downlink resource indication information. The access point in the downlink resource indication information is sent by the access point to the corresponding site in the manner indicated by the downlink resource indication information, and the resource location indicated by the site 1 to N in the downlink resource indication information is indicated by the downlink resource indication information. Receive downlink data to yourself.

Similarly, if the resource indication information of the sites 1 to N is the uplink resource indication information, the corresponding sites 1 to N receive the corresponding uplink resource indication information. The location of the resource indicated by the uplink resource indication information is sent to the access point in the manner indicated by the uplink resource indication information, and the resource location indicated by the access point in the uplink resource indication information is indicated by the uplink resource indication information. The mode receives uplink data.

Preferred embodiment two

As shown in Figure 10. This embodiment differs from the first embodiment only in that the transmitted bandwidth is discontinuous. There are several 20MHz that are not filled with any information when the frame is transmitted, as the subchannel 7 in Fig. 10 is not filled. The other subchannels are the same as the location contents corresponding to the transmission on the full bandwidth of the first embodiment. It is worth noting that which subchannels are not available does not affect the availability of other subchannels, and it is not necessary to limit channelization in the conventional WLAN technology and must adopt 20/40/80/160MHz or 80+80MHz.

Preferred embodiment three

The access point obtains an access opportunity of 140 MHz discontinuous bandwidth, as shown in FIG. When arranging the resource indication information, the access point preferably places the resource indication information of the station on the same frequency band as the data occupied frequency band. As shown in FIG. 11 , the SIFS is a resource indication information frame, and the SIFS is the resource distribution of each station scheduled.

The resource indication information of different stations that are allocated to the same bandwidth and shared by the MU-MIMO mode may be transmitted in a MU-MIMO manner. For example, in FIG. 11, when the stations 5 and 6 share the subchannel 3 in the MU-MIMO manner, the resource indication information of the stations 5 and 6 is placed on the subchannel 3. The funds of the stations 5 and 6 can be adopted in a form similar to the first embodiment. The source indication information is encapsulated and sent to a MAC control frame or a management frame, and the resource indication information of the stations 5 and 6 may be respectively encapsulated into one MAC control frame or a management frame, and two independent MAC frames are sent in the MU-MIMO manner. .

If the resource indication information of a certain station is arranged, the same bandwidth as the data occupied frequency band is already occupied, and other resources that are not occupied are preferably selected according to the downlink channel idle condition of the scheduled station. The resource indication information of different stations of the same 20 MHz shared resource in the OFDMA mode is scheduled to be transmitted to the same 20 MHz, and the access point selects other unoccupied resources for the multiplexed user according to the downlink channel idle condition of the scheduled station. For example, in FIG. 9, the

stations

7, 8, and 9 respectively occupy the frequency bands of 10 MHz, 5 MHz, and 5 MHz in the primary channel, and the resource indication information of the

stations

7, 8, and 9 are encapsulated and sent to a MAC control frame or a management frame, and may also be The resource indication information of the

stations

7, 8, and 9 are respectively encapsulated into a MAC control frame or a management frame in the resource indication information frame, and the resource indication information of the station 7 is sent in the primary channel at 20 MHz, and the MAC scheduling packets of the stations 8 and 9 are respectively. Then, they are transmitted on the subchannels 5 and 6, respectively.

Preferred embodiment four

The access point obtains an access opportunity of 120 MHz discontinuous bandwidth, as shown in FIG. The access point makes the resource indication information of each station to be scheduled into a resource indication information block, and places it in the SIG information of the physical frame, and the navigation information of the physical frame header gives a location indication of the resource indication information. This mode indicates that the physical frame does not have a payload when the resource indicates information.

When arranging the resource indication information, the access point preferably places the resource indication information of the station on the same frequency band as the data occupied frequency band. If the resource indication information of a certain station is arranged, the same bandwidth as the data occupied frequency band is already occupied, and other resources that are not occupied are preferably selected according to the downlink channel idle condition of the scheduled station. The resource indication information of different stations of the same 20 MHz shared resource in the OFDMA mode is scheduled to be transmitted to the same 20 MHz, and the access point selects other unoccupied resources for the multiplexed user according to the downlink channel idle condition of the scheduled station.

If none of the above methods finds the location where the resource indication information is sent for one site, the duration of the resource indication information is expanded. The location is then found in different frequency bands in the new time in the manner described above. As shown in FIG. 10, a column in the SIG (a fixed length of the time domain) is not sufficiently allocated, a new column is expanded, and resource indication information of the stations 9, 10 is placed in a new column.

If the resource indication information of all scheduled stations has been scheduled, and the time-frequency resources for transmitting the resource indication information remain, the access point selects any of the following methods to fill the remaining resources:

If there is a resource indicating the extension of the duration of the information resource, the resource indication information at the time before the same frequency band of the idle resource is repeated to occupy the idle resource. For example, the resource indication information of station 4 in FIG. 12 is repeated once in the second column.

Or the access point selects the resource indication information of some important sites to repeatedly fill the remaining resources to occupy the idle resources. For example, the resources of Site 9 and Site 5 in Figure 12 are repeatedly sent.

Preferred embodiment five

The access point obtains an access opportunity of 120 MHz discontinuous bandwidth. As shown in FIG. 13, the load part is a MAC frame on each subchannel, which includes resource indication information of different number of stations, so the load part is not aligned in the time domain. . As shown in Figure 12, the entire bandwidth is required to be aligned, and the non-longest MAC packets are padded, with the longest pair. Qi.

Preferred embodiment six

In all the above preferred embodiments, the scheduling indication information sent by the access point may be used to indicate that the subsequent data is an uplink scheduling, or may be a scheduling indicating that the subsequent data is a downlink, or a part of the users may be an uplink user. For example, the resource indication information of the stations 1 to N shown in FIG. 10 may all be indication information that the subsequent frame is uplink, or may be all indication information of the downlink, or may be partially downlink.

In another embodiment, software is also provided for performing the technical solutions described in the above embodiments and preferred embodiments.

In another embodiment, a storage medium is further provided, wherein the software includes the above-mentioned software, including but not limited to: an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order. It is to be understood that the objects so used are interchangeable, where appropriate, so that the embodiments of the invention described herein can be carried out in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

In summary, the embodiment of the present invention achieves the following technical effects: the utility model has the advantages of high resource utilization, no user confusion, and has the effect that the indication overhead is small, and the actual application can be flexibly selected according to the scene characteristics.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

According to the technical solution of the embodiment of the present invention, only the navigation information is sent in a completely repeated transmission manner on the frequency resource occupied by the predetermined scheduling indication information, and the downlink resource indication information or the uplink resource indication information is in the predetermined manner. The frequency resource occupied by the scheduling indication information is a technical solution in a non-repetitive manner or a partial repetition manner, which solves the long duration caused by completely repeating the transmission of all user scheduling information on the primary subchannel on the secondary subchannel in the related art. The problem of waste of resources is that there is no user confusion when the number of users is large, and the advantage of high resource utilization is obtained.

Claims

A method for sending scheduling indication information includes:

The scheduling indication information is sent to the station participating in the current scheduling in a partial repetition manner, where the scheduling indication information includes: navigation information, downlink resource indication information, and/or uplink resource indication information, where the partial repetition manner is used to indicate only The navigation information is repeatedly transmitted on the frequency resource occupied by the predetermined scheduling indication information, and the downlink resource indication information or the indication information of the part of the uplink resource indication information is repeatedly transmitted on the frequency resource, or at the frequency. The downlink resource indication information or the uplink resource indication information is sent in a non-repeating manner, where the navigation information is used to indicate the location of the scheduling indication information corresponding to the station in the frame where the scheduling indication information is located.
The method of claim 1, wherein the navigation information sent to the station is repeatedly transmitted in the frequency resource, including:

Transmitting the navigation information on a primary 20 MHz channel;

Transmitting the navigation information in a non-high-throughput non-HT repetition manner on other 20 MHz subchannels, wherein the other 20 MHz subchannels are on the frequency resource occupied by the predetermined scheduling indication information, except for the main 20 MHz channel. Outer subchannel.
The method of claim 2, wherein the other 20 MHz subchannels are sub-channels of continuous bandwidth or discontinuous bandwidth.
The method according to claim 1, wherein after the scheduling indication information is sent to the station participating in the current scheduling in a partially repeated manner, the method further includes:

Sending downlink data to the site in a manner indicated in the following resource indication information on the resource location indicated by the downlink resource indication information; and/or

The uplink data sent by the station is received in a manner indicated by the uplink resource indication information at the resource location indicated by the uplink resource indication information.
The method according to claim 1, wherein the downlink resource indication information and the uplink resource indication information of the station occupy the same frequency band as the station transmitting data or receiving data.
The method according to claim 5, wherein the downlink resource indication information and/or are transmitted by the MU-MIMO method when the MU-MIMO shared frequency band resource is allocated in the multi-user multiple input multiple output mode when the different bandwidths are scheduled to be in the same site. Or uplink resource indication information.
The method according to claim 1, wherein when the different stations are scheduled to the same bandwidth, and the same bandwidth fails to accommodate downlink resource indication information and/or uplink resource indication information of all stations, the downlink is outside the same bandwidth. The downlink resource indication information and/or the uplink resource indication information are sent in the channel for the designated user to select an unoccupied frequency resource.
The method of claim 1 wherein the method further comprises:

When the station fails to obtain the allocated frequency resource according to the scheduling indication information, extending the duration corresponding to the downlink resource indication information and/or the uplink resource indication information;

Determining a frequency location of the downlink resource indication information and/or the uplink resource indication information of the station according to the extended duration.
The method according to any one of claims 1 to 8, wherein when there is an idle state time-frequency resource in the time-frequency resource in which the scheduling indication information is transmitted, the idle state is filled in at least one of the following manners Frequency resources:

When the downlink resource indication information and/or the uplink resource indication information resource is extended, the downlink resource indication information and/or the uplink resource indication information before the time-frequency resource in the idle state is filled with the time-frequency resource of the idle state;

The downlink resource indication information and/or the uplink resource indication information of the designated station are filled into the time-frequency resources of the idle state.
The method of any of claims 1-8, wherein the method further comprises:

The downlink resource indication information and/or the uplink resource indication information are encapsulated in a medium access control MAC frame, or the downlink resource indication information and/or the uplink resource indication information is encapsulated into a signal SIG domain carried by the information block in the physical frame header. in.
A method for receiving scheduling indication information includes:

And the scheduling indication information that is sent by the access point in a partially repeated manner, where the scheduling indication information includes: navigation information, downlink resource indication information, and/or uplink resource indication information, where the partial repetition manner is used to indicate that only the navigation is The information is repeatedly sent on the frequency resource occupied by the predetermined scheduling indication information, and the downlink resource indication information or the indication information of the part of the uplink resource indication information is repeatedly sent on the frequency resource, or in the frequency resource. The downlink resource indication information or the uplink resource indication information is sent in a non-repeating manner, where the navigation information is used to indicate the location of the scheduling indication information corresponding to the station in the frame where the scheduling indication information is located;

Receiving, by the frequency resource location indicated by the navigation information, the downlink resource indication information and/or the uplink resource indication information.
The method according to claim 11, wherein after receiving the downlink resource indication information and/or the uplink resource indication information according to the frequency resource location indicated by the navigation information, the method further includes:

Receiving downlink data sent by the access point in a manner indicated in the following resource indication information on a resource location indicated by the downlink resource indication information; and/or

Uplink data is sent to the access point in a manner indicated by the uplink resource indication information at a resource location indicated by the uplink resource indication information.
A sending device for scheduling indication information, applied to an access point, includes:

The first sending module is configured to send the scheduling indication information to the station participating in the current scheduling in a partial repetition manner, where the scheduling indication information includes: navigation information, downlink resource indication information, and/or uplink resource indication information, where the part is The repetition mode is used to indicate that only the navigation information is repeatedly sent on the frequency resource occupied by the predetermined scheduling indication information, and the downlink resource indication information or the indication of the part of the uplink resource indication information is repeatedly sent on the frequency resource. And the downlink resource indication information or the uplink resource indication information is sent by using the non-repetitive transmission manner on the frequency resource, where the navigation information is used to indicate that the scheduling indication information corresponding to the station is in the frame where the scheduling indication information is located. s position.
The apparatus of claim 13 wherein said first transmitting module is arranged to transmit said navigation information on a primary 20 MHz channel; and to transmit in a non-high throughput non-HT repetition on other 20 MHz subchannels The navigation information, wherein the other 20 MHz subchannel is a subchannel other than the main 20 MHz channel on the frequency resource occupied by the predetermined scheduling indication information.
The device of claim 13, wherein the device further comprises:

The second sending module is configured to send downlink data to the station in a manner indicated in the following resource indication information at a resource location indicated by the downlink resource indication information; and/or

The receiving module is configured to receive the uplink data sent by the station in a manner indicated in the foregoing resource indication information on the resource location indicated by the uplink resource indication information.
The device of claim 13, wherein the device further comprises:

The extension module is configured to extend the duration of the downlink resource indication information and/or the uplink resource indication information when the station fails to obtain the allocated frequency resource according to the scheduling indication information;

And a determining module, configured to determine, according to the extended duration, a frequency location information of the downlink resource indication information and/or the uplink resource indication information of the site.
The device according to any one of claims 13 to 16, wherein the device further comprises: a filling module, configured to: when there is an idle state time-frequency resource in the time-frequency resource that sends the scheduling indication information, The time-frequency resource of the idle state, where the padding module is configured to: when the downlink resource indication information and/or the uplink resource indication information resource is extended, the downlink resource indication information before the time-frequency resource in the idle state and/or The uplink resource indication information fills the time-frequency resource of the idle state; and the downlink resource indication information and/or the uplink resource indication information of the designated station is filled into the time-frequency resource of the idle state.
A receiving device for scheduling indication information is applied to a site, including:

The parsing module is configured to parse the scheduling indication information that is sent by the access point in a partially repeated manner, where the scheduling indication information includes: navigation information, downlink resource indication information, and/or uplink resource indication information, where the partial repetition manner is used. Instructing that only the navigation information is repeatedly transmitted on the frequency resource occupied by the predetermined scheduling indication information, and repeatedly transmitting the downlink resource indication information or the indication information of the part of the uplink resource indication information on the frequency resource, or Sending downlink resource indication information or uplink in a non-repetitive manner in the frequency resource a resource indication information, where the navigation information is used to indicate a location of the scheduling indication information corresponding to the site in a frame where the scheduling indication information is located;

The first receiving module is configured to receive the downlink resource indication information and/or the uplink resource indication information according to the frequency resource location indicated by the navigation information.
The device of claim 18, wherein the device further comprises:

The second receiving module is configured to receive, in a resource location indicated by the downlink resource indication information, downlink data sent by the access point in a manner indicated by the following resource indication information; and/or

The sending module is configured to send, to the resource location indicated by the uplink resource indication information, uplink data to the access point in a manner indicated by the uplink resource indication information.